Triisobutylaluminum

198.32

198.193

202-906-3

09P2THV2X4

3394|3051

DTXSID0026670

CLEAR COLORLESS LIQUID|Colorless liquid

2931900090

0

4.83000

Clear colorless to light yellow Solution

0.781 g/cm³ @ Temp: 25 °C

0 °C

86 °C @ Press: 10 Torr

−1 °F

1.4494

Solubility in water: reaction

0-6°C

1 mm Hg @ 47 deg C

Reference value Inhalation-Rat LC50: 10000 mg/m3/15 minutes

It can spontaneously ignite in case of air, chlorine, oxidant, high temperature and water; burning produces toxic aluminide fumes

Violently explosive when they come into contact with water. /Aluminum alkyls/

Specific heat 2.12 J/g at 57 °C|Branched-chain trialkylaluminum (R3Al) compound, eg, triisobutylaluminum, begin to decompose ... at about 50 °C. Decomposition ... at higher temperatures, ie, above 100 °C ... is accompanied by considerable rearrangement of carbon skeletons.|Freezing point: 1 °C.|Reacts violently /with water/ to form flammable hydrocarbon gases.|For more Other Experimental Properties (Complete) data for TRIISOBUTYLALUMINUM (7 total), please visit the HSDB record page.

Pyrophoric. Reacts violently with water producing flammable gas [Rose 1961].

Metal Hydrides, Metal Alkyls, Metal Aryls, and Silanes

Strong Reducing Agent

TRIISOBUTYL ALUMINUM reacts violently with alcohols, phenols, amines, carbon dioxide, sulfur oxides, nitrogen oxides, halogens, and halogenated hydrocarbons, causing fire and explosion hazards [Handling Chemicals Safely 1980. p. 937].

Ignites spontaneously under ambient conditions (USCG, 1999)|Below 39 °F; 4 °C

-18.423 BTU/LB= -10.235 CAL/G= -428.23X10+5 JOULES/KG

101 BTU/LB= 56 CAL/G= 2.3X10+5 JOULES/KG

I

4.3

UN 3394 4.2/PG 1

2

14-17-23/24/25-34-67-65-63-48/20-11-62-51/53

26-36/37/39-45-61-62-6A-46-43A-16-27-43

BD2203500

F,C,N

Treasury ventilated at low temperature and dry; packed with nitrogen; stored separately from oxidant

Less sensitive than trialkylaminums to oxidation upon exposure to air. /Alkylaluminum halides/

P210, P222, P223, P231+P232, P260, P264, P280, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P335+P334, P363, P370+P378, P402+P404, P405, P422, P501

H250-H260-H314

Aluminum compounds are treated under anhydrous conditions to prevent violent reactions, recover solvent, and form Al compounds suitable for landfill by reaction with anhydrous hydrolysis agent, eg calcium hydroxide. /Aluminum compounds/|SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

Incompatible with moisture, acids, air, alcohols, amines and halogens.|Extremely reactive with air, moisture, and compounds containing active hydrogen... /Alkyl aluminum compounds/|Reacts violently with a broad range of materials including air & water. /Aluminum alkyls/

Anon; Information profiles on Potential Occupaional Hazards: Aluminum & Compounds, 2nd Draft (Revised); GRA & I Issue 21 NTIS/PB89-216238 (1989)> TD3: Information profiles are working papers used by the National Institute for Occupational Safety and Health to assist the Institute in establishing priorities. The proile summarizes data on organic and inorganic substances containing aluminum as the only metal. Each summary presents data on known and suspected health effects, the extent of worker exposure, physical and chemical properties and the industrial importance of the following aluminum compounds: aluminum metal, aluminum ammonium sulfate, aluminum chlorhydrate, aluminum chloride anhydrous, aluminum chloride hydrous, aluminum distearate, aluminum ethoxide, aluminum fluoride, aluminum hydride, aluminum hydroxide, aluminum nitrate, aluminum oxide, aluminum ortho-phosphate, aluminum potassium sulfate, aluminum silicate, aluminum sodium sulfate, aluminum sulfate, calcium aluminum silicate, diethylaluminum chloride, sodium aluminate, tri-n-butylaluminum, triethylaluminum, tri-n-hexylaluminum, triisobutylaluminum, tri-n-octylaluminum. Detailed literature searches are conducted to identify information to be used in the profile sumaries. Sponsored by National Inst. for Occupational Safety and Health, Rockville, MD.

Special Hazards of Combustion Products: Dense smoke may cause metal-fume fever. Behavior in Fire: Dense smoke of aluminum oxide forms. (USCG, 1999)|Flammable - 4th degree, Reactive - 3rd degree

|Danger|H250 (100%): Catches fire spontaneously if exposed to air [Danger Pyrophoric liquids; Pyrophoric solids]|P210, P222, P223, P231+P232, P260, P264, P280, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P335+P334, P363, P370+P378, P402+P404, P405, P422, and P501|Aggregated GHS information provided by 82 companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 135 [Substances - Spontaneously Combustible]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch or walk through spilled material. Stop leak if you can do it without risk. SMALL SPILL: EXCEPTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal. CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors. Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2016)

Full protective clothing, preferably of aluminized glass cloth; goggles; face shield; gloves. In case of fire, all-purpose canister or self-contained breathing apparatus. (USCG, 1999)|Full protective clothing, preferably of aluminized glass cloth; goggles; face shield; gloves.|Wear appropriate personal protective clothing to prevent skin contact. /Aluminum (soluble salts and alkyls, as Al/|Wear appropriate eye protection to prevent eye contact. /Aluminum (soluble salts and alkyls, as Al)/|Protective clothing and a high standard of training in the necessary precautionary measures are essential for the handling of the materials. /Aluminum alkyls/

Material if flammable in air at all temperatures.|Certain polymerization catalysts, such as aluminum alkyls, react & burn violently on contact with water. /Aluminum alkyls/|Aluminum alkyls are organic aluminum compounds that are highly reactive and dangerous because of spontaneous burning in air. /Aluminum alkyls/|Prophoric material in flammable solvent. Vapors are heavier than air & may travel to a source of ignition & flash back. /Aluminum alkyls/

Ignites on exposeur to air.|Pyrophoric or explosive in water. Explosive reactions with alcohols, benzene.|...Violently explosive when they come into contact with water. /Aluminum alkyls/

/Use/ CO2, dry sand, dry chemical. Do not use water, foam or halogenated extinguishing agents.|In case of fire, use all-purpose canister or self-contained breathing apparatus.|Fight fire from protected location or maximum possible distance. DO NOT use water as straight stream directly on spilled material. Violent reaction may result. Water fog may be used to control fires. Use graphite powder, soda ash, or powdered sodium chloride to extinguish fire. On solvent-based materials use dry chemical, foam, or carbon dioxide. Use water spray cautiously to keep fire-exposed containers cool. Extinguish fire using agent suitable for surrounding fire.|Stop flow of liquid before extinguishing fire. Use dry chemical or carbon dioxide. DO NOT use water as straight stream directly on spilled material. Water fog can be used to control fire. DO NOT use halogenated extinguishing agents on spilled material. Violent reaction may result. Use water spray to keep fire-exposed containers cool. Fight fire from protected location or maximum possible distance. /Aluminum Alkyls/

Approach release from upwind. Keep water away from release. Do not use foam to blanket release and suppress vapors. Stop or control the leak, if this can be done without undue risk. Control runoff and isolate discharged material for proper disposal.|After mixing with dry sodium carbonate, disperse the mixture by scattering into a large steel pan situated in a remote place. Burn the mixture after covering with scrap wood or paper.

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.|Work clothing that becomes wet or significantly contaminated should be removed and replaced. /Aluminum (soluble salts and alkyls, as Al)/|Workers whose clothing may have become contaminated should change into uncontaminated clothing before leaving the work premises. /Aluminum (soluble salts and alkyls, as Al)/|The worker should immediately wash the skin when it becomes contaminated. /Aluminum (soluble salts and alkyls, as Al)/|SRP: Contaminated protective clothing should be segregated in such a manner so that there is no direct personal contact by personnel who handle, dispose, or clean the clothing. Quality assurance to ascertain the completeness of the cleaning procedures should be implemented before the decontaminated protective clothing is returned for reuse by the workers. Contaminated clothing should not be taken home at end of shift, but should remain at employee's place of work for cleaning.

/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Fire or Explosion: Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated. /Aluminum alkyls/|/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Health: Fire will produce irritating, corrosive and/or toxic gases. Inhalation of decomposition products may cause severe injury or death. Contact with substance may cause severe burns to skin and eyes. Runoff from fire control may cause pollution. /Aluminum alkyls/|/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Public Safety: CALL Emergency Response Telephone Number ... . As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Stay upwind. Keep unauthorized personnel away. Keep out of low areas. /Aluminum alkyls/|/GUIDE 135: SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing will only provide limited protection. /Aluminum alkyls/|For more DOT Emergency Guidelines (Complete) data for TRIISOBUTYLALUMINUM (8 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

Irritating to skin, eyes, and respiratory system.|Irritation of the eyes has been noted in patients who have been exposed /to aluminum alkyls/. /Aluminum alkyls/|May cause minor irritation to lungs or eyes. /Aluminum (dust or powder)/

Vacated 1989 OSHA PEL TWA 2 mg/cu m is still enforced in some states. /Aluminum (soluble salts & alkyls, as Al)/

Recommended Exposure Limit: 10-Hr Time-Weighted Avg: 10 mg/cu m (total). /Aluminum/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m (resp). /Aluminum/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 2 mg/cu m. /Aluminum (soluble salts and alkyls, as Al)/|Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 5 mg/cu m. /Aluminum (pyro powders and welding fumes, as Al)/

| 3 - Materials that, under emergency conditions, can cause serious or permanent injury.| 4 - Materials that rapidly or completely vaporize at atmospheric pressure and normal ambient temperature or that are readily dispersed in air and burn readily.| 3 - Materials that in themselves are capable of detonation or explosive decomposition or explosive reaction but that require a strong initiating source or must be heated under confinement before initiation.

D003; A waste containing Triisobutylaluminum may (or may not) be characterized a hazardous waste following testing for the reactivity characteristics as prescribed by the Resource Conservation and Recovery Act (RCRA) regulations.

D003; A solid waste containing Triisobutylaluminum may become characterized as a hazardous waste when subjected to testing for reactivity as stipulated in 40 CFR 261.23, and if so characterized, must be managed as a hazardous waste.

moderately toxic

ALUMINUM DUST, ISOBUTYLENE, VAPORS FROM SOLVENT & PRODUCTS OF OXIDN & DECOMP OF TRIISOBUTYLALUMINUM ARE POLLUTANTS IN WORKING AREA.

Inhalation of smoke from fire causes metal-fume fever (flu-like symptoms). Contact with liquid can cause severe burns of eyes and skin because of spontaneous ignition. (USCG, 1999)

INHALATION: only fumes from fire need be considered; metal-fume fever lasts less than 36 hrs. and is not critical. EYES: flush gently with copious quantities of water for 15 min. with lids open; treat burns, if fire occurred; get medical attention. SKIN: wash with water; treat burns caused by fire; get medical attention. INGESTION: (USCG, 1999)

/SIGNS AND SYMPTOMS/ Corrosive. Causes severe eye and skin burns. Irritating to skin, eyes, and respiratory system. May be harmful if absorbed through skin or inhaled. "Metal fume fever" may result from inhalation of fumes /from organoaluminum compounds/. /SRP: While possible, metal fume fever is not highly probable./ /Organoaluminum compounds/|/OTHER TOXICITY INFORMATION/ Vapors of the pyrophoric alkyls (butyls and below) are nontoxic because they are completely consumed, but inhalation of the metallic oxide smoke (Al2O3) at 15 mg/cu m or greater can result in symptoms such as "metal fume fever." /Aluminum alkyls/

TIBAL cpd

PROBABLY ABOUT 70% AS A POLYMERIZATION CATALYST FOR POLYBUTADIENE, POLYISOPRENE, AND POLYPROPYLENE; 30% FOR OTHER USES (1976)

GRADES OR PURITY: TECHNICAL 95+%; 20% OR LESS BY WT IN BENZENE, HEXANE, OR HEPTANE (SOLUTIONS ARE NOT PYROPHORIC); ELECTRONIC GRADE.

Aluminum, tris(2-methylpropyl)-: ACTIVE

Fire Hazards -> Flammable - 4th degree, Reactive - 3rd degree